Kepco MPS620M

The Kepco MPS620M is a three-output linear DC power supply for laboratory and ATE applications requiring precise voltage and current control across multiple rails. The unit combines a high-current 6V primary output with dual tracking ±20V outputs, all adjustable via front panel controls. Each output section includes independent current limiting and protection circuitry. Operating from selectable AC mains (105-125V or 210-250V, 50-440 Hz), it delivers stable, low-noise power suitable for IC testing, microprocessor development, and system integration.

## Technical Specifications

**Input & Physical**
• AC input: 105-125V or 210-250V AC, selectable, 50-440 Hz, single phase
• Power consumption: Approximately 250W
• Package: Three-quarter rack; cold-rolled steel chassis and cover; aluminum front panel
• Operating temperature: -20°C to +50°C (full current rating at 50°C)
• Storage temperature: -40°C to +85°C
• Output isolation: Floatable to 300V DC or peak off ground
• Compliance: MIL-STD-461

**Primary 6V Output**
• Voltage range: 0 to 6V, continuously adjustable via ten-turn control
• Current rating: 0 to 5A
• Current limiting: Fixed at approximately 110% of maximum; indefinite short-circuit sustainment with auto-recovery
• Overvoltage protection: Adjustable crowbar circuit, 4V to 8V range, with indicator lamp
• Remote error sensing terminals provided

**Dual ±20V Tracking Outputs**
• Voltage range: 0 to +20V and 0 to -20V independently, single ten-turn control
• Current rating: 0 to 1A per output
• Current limiting: Adjustable, preset internally from 10% to 110% of rated current (0.1A to 1.1A)
• Series configuration: Can be connected for 0 to 40V at 1A
• Short-circuit proof via sharp current-limit characteristic

**Performance & Regulation**
• Voltage recovery: <50µsec typical, 100µsec maximum (10% to 100% load step)
• Source variation (105-125V/210-250V, 50-440 Hz): 0.01% for 6V and ±20V outputs
• Load variation (no-load to full-load): 0.01% for 6V, 0.05% for ±20V outputs

## Key Features

• Three independent output channels with dedicated front panel controls
• Adjustable current limiting and overvoltage protection on primary output
• Floating output capability for high-voltage common-mode applications
• Fast voltage recovery under transient load conditions
• Short-circuit proof operation on all outputs
• Selectable input voltage for global operation

## Typical Applications

• IC characterization and testing
• Microprocessor development and validation
• Benchtop circuit design and troubleshooting
• Integration into automated test equipment (ATE) systems
• High-voltage floating-ground applications

## Compatibility & Integration

Remote error sensing terminals support closed-loop regulation in system applications. MIL-STD-461 compliance enables integration into military and aerospace test facilities. Three-quarter rack format accommodates standard 19-inch equipment racks.